// Start dragging an object
BOOL backdrop_drag_object(
BackdropInfo *info,
BackdropObject *object)
{
struct Image *image;
ULONG flags=0;
// Is object already being dragged?
if (object->drag_info) return 1;
// Is there a select image?
if (object->icon->do_Gadget.SelectRender &&
(object->icon->do_Gadget.Flags&GFLG_GADGHIMAGE))
{
image=(struct Image *)object->icon->do_Gadget.SelectRender;
}
// No
else image=(struct Image *)object->icon->do_Gadget.GadgetRender;
// Get flags
if (info->flags&BDIF_CUSTOM_DRAG)
{
// Custom drag
flags=DRAGF_CUSTOM;
// Opaque?
if (environment->env->desktop_flags&DESKTOPF_QUICK_DRAG) flags|=DRAGF_NO_MASK;
}
// Get drag info
if (!(object->drag_info=
GetDragInfo(
info->window,
&GUI->drag_screen_rp,
(image->Width<object->pos.Width)?object->pos.Width:image->Width,
(image->Height<object->pos.Height)?object->pos.Height:image->Height,
flags)))
return 0;
// Get image to drag
backdrop_draw_object(info,object,0,&object->drag_info->drag_rp,0,0);
// Get mask
if (environment->env->desktop_flags&DESKTOPF_QUICK_DRAG)
object->drag_info->flags|=DRAGF_OPAQUE;
else
if (environment->env->desktop_flags&DESKTOPF_TRANSPARENCY)
object->drag_info->flags|=DRAGF_TRANSPARENT;
else
object->drag_info->flags|=DRAGF_TRANSPARENT|DRAGF_OPAQUE;
GetDragMask(object->drag_info);
return 1;
}
// Draw an object
void backdrop_draw_object(
BackdropInfo *info,
BackdropObject *object,
UWORD flags,
struct RastPort *rp,
short left,
short top)
{
UBYTE fpen=1,bpen=0,drawmode=JAM2,opus_drawmode=JAM2;
UWORD *imagedata=0;
struct Image *image=0;
struct Rectangle rect;
short len;
BOOL comp=0,draw=1,state=0;
short has_border;
// No icon?
if (!object->icon) return;
// See if icon has no border
has_border=backdrop_icon_border(object);
// Not just clearing image?
if (!(flags&BRENDERF_CLEAR))
{
// Get image to render
if ((image=(struct Image *)object->icon->do_Gadget.GadgetRender))
imagedata=image->ImageData;
// Is icon selected?
if (object->state)
{
// Is there a select image?
if (object->icon->do_Gadget.SelectRender &&
(object->icon->do_Gadget.Flags&GFLG_GADGHIMAGE))
{
if ((image=(struct Image *)object->icon->do_Gadget.SelectRender))
imagedata=image->ImageData;
state=1;
}
else comp=1;
}
}
#ifdef USE_DRAWICONSTATE
if (GetIconRectangle(
rp, object->icon, NULL, &rect,
ICONDRAWA_Borderless, TRUE,
TAG_DONE))
{
object->pos.Width = rect.MaxX - rect.MinX + 1;
object->pos.Height = rect.MaxY - rect.MinY + 1;
}
#elif defined(__MORPHOS__)
if (ISOWN(object->icon))
{
struct OwnDiskObject *o = (APTR)object->icon;
object->pos.Width = o->pngimage_width;
object->pos.Height = o->pngimage_height;
}
#endif
// Get object position
if (flags&BRENDERF_REAL)
{
short border_x=0,border_y_top=0,border_y_bottom=0;
// Border?
if (has_border)
{
// Use default border
border_x=ICON_BORDER_X;
border_y_top=ICON_BORDER_Y_TOP;
border_y_bottom=ICON_BORDER_Y_BOTTOM;
}
// Calculate full size
object->full_size.MinX=left-border_x;
object->full_size.MinY=top-border_y_top;
object->full_size.MaxX=left+object->pos.Width+border_x-1;
object->full_size.MaxY=top+object->pos.Height+border_y_bottom-1;
// Get image rectangle
rect.MinX=object->full_size.MinX+(info->size.MinX-info->offset_x);
rect.MinY=object->full_size.MinY+(info->size.MinY-info->offset_y);
rect.MaxX=object->full_size.MaxX+(info->size.MinX-info->offset_x);
rect.MaxY=object->full_size.MaxY+(info->size.MinY-info->offset_y);
// Store position
object->show_rect=rect;
object->image_rect=rect;
// Is object offscreen?
if (rect.MaxX<info->size.MinX ||
rect.MaxY<info->size.MinY ||
rect.MinX>info->size.MaxX ||
rect.MinY>info->size.MaxY) draw=0;
// Offset by coordinates
left+=info->size.MinX-info->offset_x;
top+=info->size.MinY-info->offset_y;
}
else
{
rect.MinX=left;
rect.MinY=top;
rect.MaxX=left+object->pos.Width-1;
rect.MaxY=top+object->pos.Height-1;
}
// Clear area?
if (flags&BRENDERF_CLEAR)
{
// Ok to draw?
if (draw)
{
// Clear whole icon?
if (!(flags&BRENDERF_LABEL))
{
EraseRect(rp,rect.MinX,rect.MinY,rect.MaxX,rect.MaxY);
}
}
// Can't draw
else flags&=~BRENDERF_CLEAR;
}
// Object state changed?
else
if (object->flags&BDOF_STATE_CHANGE)
{
#ifndef USE_DRAWICONSTATE
// Need to clear if transparent
#if !defined(__MORPHOS__)
if (!has_border)
#endif
EraseRect(rp,rect.MinX,rect.MinY,rect.MaxX,rect.MaxY);
#endif
object->flags&=~BDOF_STATE_CHANGE;
}
// Draw as normal
if (!(flags&BRENDERF_CLEAR))
{
// Not drawing if no image
if (!imagedata) draw=0;
// Ok to draw?
if (draw)
{
struct BitMap bitmap;
BOOL use_mask=0;
// Full icon?
if (flags&BRENDERF_REAL)
{
// Want border?
if (has_border)
{
// Draw border around icon
DrawBox(rp,&rect,GUI->draw_info,object->state);
// Get background colour
#ifdef USE_64BIT
SetAPen(
rp,
(object->flags&BDOF_BACKGROUND)?
object->pen:
GUI->draw_info->dri_Pens[BACKGROUNDPEN]);
#else
SetAPen(
rp,
(object->flags&BDOF_BACKGROUND)?
object->size:
GUI->draw_info->dri_Pens[BACKGROUNDPEN]);
#endif
// Clear boundary around image
#ifdef USE_DRAWICONSTATE
RectFill(rp,rect.MinX+1,rect.MinY+1,rect.MaxX-1,rect.MaxY-1);
#else
RectFill(rp,rect.MinX+1,rect.MinY+1,rect.MaxX-1,rect.MinY+2);
RectFill(rp,rect.MinX+1,rect.MinY+1,rect.MinX+3,rect.MaxY-1);
RectFill(rp,rect.MinX+4,rect.MaxY-3,rect.MaxX-1,rect.MaxY-1);
RectFill(rp,rect.MaxX-3,rect.MinY+3,rect.MaxX-1,rect.MaxY-4);
#endif
}
#ifdef USE_DRAWICONSTATE
else
{
EraseRect(rp,rect.MinX,rect.MinY,rect.MaxX,rect.MaxY);
}
#endif
}
#ifdef USE_DRAWICONSTATE
DrawIconState(
rp, object->icon, NULL,
left, top, object->state ? IDS_SELECTED : IDS_NORMAL,
ICONDRAWA_Frameless, TRUE,
ICONDRAWA_Borderless, TRUE,
ICONDRAWA_EraseBackground, FALSE,
TAG_DONE);
#else
#if defined(__MORPHOS__)
if (ISOWN(object->icon))
{
IPTR tags[] = { BLTBMA_USESOURCEALPHA, TRUE, TAG_DONE };
struct OwnDiskObject *o = (APTR)object->icon;
BltBitMapRastPortAlpha(o->pngimage,
0, 0, rp, left, top, o->pngimage_width, o->pngimage_height,
(struct TagItem *)&tags);
if (object->state)
{
ProcessPixelArray(rp, left, top, o->pngimage_width, o->pngimage_height,
POP_TINT, 0x5082ff, NULL);
}
}
else
{
#endif
// Get image as a bitmap
backdrop_image_bitmap(info,image,imagedata,&bitmap);
// Using a mask (no border)?
if (!has_border && object->image_mask[state])
{
// Draw using a mask
BltMaskBitMapRastPort(
&bitmap,0,0,
rp,left,top,
image->Width,image->Height,
0xe0,
(PLANEPTR)object->image_mask[state]);
use_mask=1;
}
// Draw normally
else
{
// Draw image
BltBitMapRastPort(
&bitmap,0,0,
rp,left,top,
image->Width,image->Height,
0xc0);
}
// Complement?
if (comp)
{
DragInfo *drag_info;
UBYTE mask;
// Only complement to image depth
mask=rp->Mask;
SetWrMsk(rp,image->PlanePick);
// Need backfill?
if ((object->icon->do_Gadget.Flags&GFLG_GADGBACKFILL) &&
(drag_info=GetDragInfo(info->window,0,-object->pos.Width,-object->pos.Height,0)))
{
// Draw icon into drag buffer
BltBitMapRastPort(
&bitmap,0,0,
&drag_info->drag_rp,0,0,
image->Width,image->Height,
0xc0);
// Build mask
GetDragMask(drag_info);
// Complement area with mask
BltMaskBitMapRastPort(
&drag_info->drag_bm,
0,0,
rp,
left,top,
image->Width,
image->Height,
0x20,
(PLANEPTR)drag_info->bob.ImageShadow);
// Free temporary drag info
FreeDragInfo(drag_info);
}
// Just complement image
else
{
ClipBlit(
rp,
left,top,
rp,
left,top,
image->Width,
image->Height,
0x50);
}
// Restore mask
SetWrMsk(rp,mask);
}
#if defined(__MORPHOS__)
}
#endif
#endif
// Left out (on desktop), or a link?
if (!(environment->env->desktop_flags&DESKTOPF_NO_ARROW) &&
((object->type==BDO_LEFT_OUT && !(object->flags&BDOF_DESKTOP_FOLDER) && info->flags&BDIF_MAIN_DESKTOP) ||
object->flags&BDOF_LINK_ICON))
{
struct Image *image;
// Get correct image for this resolution
image=(GUI->screen_info&SCRI_LORES)?&arrow_image[1]:&arrow_image[0];
// Is object big enough for the 'shortcut arrow'?
if (object->pos.Width>(image->Width<<1) &&
object->pos.Height>image->Height+4)
{
// Draw arrow in bottom-left corner
DrawImage(rp,image,rect.MinX,rect.MaxY-image->Height+1);
}
}
// Ghosted icon?
if (object->flags&BDOF_GHOSTED)
{
// Draw ghosting over the icon
backdrop_draw_icon_ghost(rp,&rect,(use_mask)?(PLANEPTR)object->image_mask[state]:0);
}
}
// Get pens from configuration
fpen=(info->flags&BDIF_MAIN_DESKTOP)?environment->env->icon_fpen:environment->env->iconw_fpen;
bpen=(info->flags&BDIF_MAIN_DESKTOP)?environment->env->icon_bpen:environment->env->iconw_bpen;
drawmode=(info->flags&BDIF_MAIN_DESKTOP)?environment->env->icon_style:environment->env->iconw_style;
opus_drawmode=drawmode;
// Shadow/Outline?
if (drawmode==MODE_SHADOW || drawmode==MODE_OUTLINE)
{
UBYTE temp;
// Set back to JAM1
drawmode=JAM1;
// Swap the pens
temp=fpen;
fpen=bpen;
bpen=temp;
}
// Fix pens for user colours
if (fpen>=4 && fpen<252) fpen=GUI->pens[fpen-4];
if (bpen>=4 && bpen<252) bpen=GUI->pens[bpen-4];
// Use fast call under 39
if(((struct Library *)GfxBase)->lib_Version>=39)
{
SetABPenDrMd(rp,fpen,bpen,drawmode);
}
else
{
SetAPen(rp,fpen);
SetBPen(rp,bpen);
SetDrMd(rp,drawmode);
}
}
// Full icon?
if (flags&BRENDERF_REAL && !(object->flags&BDOF_NO_LABEL))
{
char *name,namebuf[40];
// Bad disk?
if (object->type==BDO_BAD_DISK)
{
// Get bad disk name
backdrop_bad_disk_name(object,namebuf);
name=namebuf;
}
// Custom label?
else
if (object->flags&BDOF_CUSTOM_LABEL) name=object->device_name;
// Get name pointer
else name=object->name;
// Get text length
if ((len=strlen(name)))
{
struct TextExtent extent;
short max_width=0,loop,textx,texty;
// Splitting long labels?
if (environment->env->desktop_flags&DESKTOPF_SPLIT_LABELS)
{
// Calculate maximum text width (minimum 6 chars)
max_width=RECTWIDTH(&rect)+(RECTWIDTH(&rect)>>1);
if (max_width<rp->Font->tf_XSize*6)
max_width=rp->Font->tf_XSize*6;
}
// Position for text
textx=rect.MinX+(RECTWIDTH(&rect)>>1);
texty=rect.MaxY+ICON_LABEL_SPACE+rp->TxBaseline+((opus_drawmode==MODE_OUTLINE)?1:0);
Move(rp,textx,texty);
// Get text pixel size
TextMultiLine(rp,name,len,max_width,TMLF_CENTER|TMLF_EXTENT,&extent);
// Fix extent for shadow/outline
if (opus_drawmode==MODE_SHADOW)
{
extent.te_Extent.MaxX++;
extent.te_Width++;
extent.te_Height++;
}
else
if (opus_drawmode==MODE_OUTLINE)
{
extent.te_Extent.MinX--;
extent.te_Extent.MaxX++;
extent.te_Width+=2;
extent.te_Height+=2;
}
// Stretch out rectangle sides if necessary
if (extent.te_Extent.MinX<rect.MinX)
object->full_size.MinX-=rect.MinX-extent.te_Extent.MinX;
if (extent.te_Extent.MaxX>rect.MaxX)
object->full_size.MaxX+=extent.te_Extent.MaxX-rect.MaxX;
if (object->show_rect.MinX>extent.te_Extent.MinX)
object->show_rect.MinX=extent.te_Extent.MinX;
if (object->show_rect.MaxX<extent.te_Extent.MinX+extent.te_Width-1)
object->show_rect.MaxX=extent.te_Extent.MinX+extent.te_Width-1;
// Save bottom of text
object->show_rect.MaxY+=ICON_LABEL_SPACE+extent.te_Height; // +((opus_drawmode==MODE_OUTLINE)?1:0);
object->full_size.MaxY+=ICON_LABEL_SPACE+extent.te_Height; // +((opus_drawmode==MODE_OUTLINE)?1:0);
// Clear?
if (flags&BRENDERF_CLEAR)
{
EraseRect(rp,
extent.te_Extent.MinX,rect.MaxY+ICON_LABEL_SPACE+((opus_drawmode==MODE_OUTLINE)?1:0),
extent.te_Extent.MinX+extent.te_Width-1,rect.MaxY+ICON_LABEL_SPACE+extent.te_Height-1);
}
// Draw text
else
{
// Is object selected?
if (object->flags&BDOF_SELECTED)
{
if (drawmode==JAM2) SetDrMd(rp,INVERSVID|JAM2);
else
if (fpen!=GUI->draw_info->dri_Pens[HIGHLIGHTTEXTPEN])
SetAPen(rp,GUI->draw_info->dri_Pens[HIGHLIGHTTEXTPEN]);
else SetAPen(rp,GUI->draw_info->dri_Pens[BACKGROUNDPEN]);
}
// Shadow
if (opus_drawmode==MODE_SHADOW)
{
// Draw shadow text first
Move(rp,textx+1,texty+1);
TextMultiLine(rp,name,len,max_width,TMLF_CENTER,0);
// Draw text
SetAPen(rp,bpen);
Move(rp,textx,texty);
TextMultiLine(rp,name,len,max_width,TMLF_CENTER,0);
}
// Normal text
else
if (opus_drawmode!=MODE_OUTLINE)
{
// Render text
TextMultiLine(rp,name,len,max_width,TMLF_CENTER,0);
}
// Outline
else
{
Move(rp,textx+1,texty+1);
for (loop=0;loop<5;loop++)
{
// Render text
TextMultiLine(rp,name,len,max_width,TMLF_CENTER,0);
// Doing shadow?
if (loop<4)
{
short s_x=0,s_y=0;
// Switch to other pen?
if (loop==3)
SetAPen(rp,bpen);
// Get the new offsets
else
if (loop==0)
{
s_x=-1;
s_y=1;
}
else
if (loop==1)
{
s_x=-1;
s_y=-1;
}
else
if (loop==2)
{
s_x=1;
s_y=-1;
}
// Position for text
Move(rp,textx+s_x,texty+s_y);
}
}
}
// Reset draw mode if necessary
if (object->flags&BDOF_SELECTED)
SetDrMd(rp,drawmode);
}
}
// Start dragging a button
void buttons_start_drag(
Buttons *buttons,
short x,
short y,
short col,
short row)
{
struct Rectangle rect;
// Store column and row
buttons->drag_col=buttons->button_sel_col;
buttons->drag_row=buttons->button_sel_row;
// Save button pointer
buttons->button_drag_button=buttons->button_sel_button;
// Get draginfo
if (!(buttons->drag_info=
GetDragInfo(
buttons->window,
0,
buttons->button_width,
buttons->button_height,
DRAGF_NEED_GELS|DRAGF_CUSTOM))) return;
// Get button coordinates
buttons_get_rect(buttons,col,row,&rect);
// Set opaque flag
buttons->drag_info->flags|=DRAGF_OPAQUE;
// Redraw button
buttons_show_button(
buttons,
buttons->button_drag_button,
buttons->drag_col,
buttons->drag_row,
buttons->button_drag_button->current,
0);
// Draw button image for drag
SetDrMd(&buttons->drag_info->drag_rp,JAM1);
SetFont(&buttons->drag_info->drag_rp,buttons->window->RPort->Font);
buttons_show_button(
buttons,
buttons->button_drag_button,
0,0,
FTYPE_LEFT_BUTTON,
&buttons->drag_info->drag_rp);
// Calculate mask
GetDragMask(buttons->drag_info);
// Calculate offset
buttons->drag_x_offset-=rect.MinX;
buttons->drag_y_offset-=rect.MinY;
// Initialise tick count
buttons->tick_count=1;
buttons->last_tick=0;
// Show drag image
buttons_show_drag(buttons,x,y);
}
